Charles dies: Popular boxing announcer and sportscaster Nick Charles died Saturday in Santa Fe, N.M., at age 64 after a long battle with cancer.

Charles, a former taxi driver who became CNN's first sports anchor, was perhaps best known as the blow-by-blow announcer on Showtime's "ShoBox" events.

Mayweather on HBO: Floyd Mayweather Jr.'s bout against Victor Ortiz on Sept. 17 will be televised on HBO Pay-Per-View.

Jones cleared to fight: UFC heavyweight champion Jon Jones has been medically cleared to resume fighting and is tentatively scheduled to face former titleholder Quinton "Rampage" Jackson in UFC 135 on Sept. 24 at the Pepsi Center in Denver.

All future UFC main events will be contested over five rounds, president Dana White recently announced.

Up to this point, five-round bouts had been reserved for title fights.

Local notebook

Lopez eyes pro ranks: San Antonio amateur Adam Lopez dropped a 14-12 decision to John Franklin on Wednesday in the quarterfinals of the U.S. Championships in Colorado Springs, Colo.

Lopez, who needed to advance to the semifinals in order to qualify for the U.S. Olympic Trials, now is considering turning pro.

SA fighters lose: Four San Antonio boxers appeared on a pro card June 24 in Robstown. All four lost.